$("#homework_post_reply_<%= @user_activity_id%>").replaceWith("<%= escape_javascript(render :partial => 'users/homework_post_reply', :locals => {:activity => @homework_common, :user_activity_id => @user_activity_id, :hw_status => @hw_status, :is_teacher => @is_teacher}) %>");
<% if @user_activity_id != @homework_common.id %>
sd_create_editor_from_data(<%= @user_activity_id%>,"","100%", "UserActivity");
<% else %>
sd_create_editor_from_data(<%= @homework_common.id%>,"","100%", "<%=@homework_common.class.to_s%>");
<% end %>